Mentions of Trump on both television and radio have been trending downward for a month from their post-Fox debate high. His share of Twitter conversation relative to other candidates has declined in recent weeks, and his odds in political prediction markets have dipped in the hours since Wednesday night’s debate.

Radio and television conversation about Trump peaked on Aug. 7, the day after the first Republican debate, with close to 11,000 mentions of his name on each medium that day, according to data through Monday provided by media monitoring firm Critical Mention. The last time Trump reached even half as many mentions on either medium was on Aug. 26, the day after he clashed dramatically with Univision anchor Jorge Ramos at a news conference in Iowa.

That was Trump’s most dominant day of the campaign on Twitter, when 80 percent of conversations about Republican presidential candidates were about him, according to data through mid-Thursday provided by the analytics firm Echelon Insights. Since that day, his share of Twitter conversation has trended downward.